Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091736 |
Winter precipitation changes in California under global warming: Contributions of CO2, uniform SST warming, and SST change patterns | |
Lu Dong; L. Ruby Leung | |
2021-02-19 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Climate models project a wetting winter over California, distinct from the drying in all other Mediterranean climate regions under warming. Dynamic effect via an eastward extension of the westerly jet stream over the North Pacific is the root cause for the wetting California. Utilizing four sets of prescribed‐SST (sea surface temperature) simulations, the relative effects of direct CO2 radiative forcing, uniform SST warming, and SST change patterns are investigated. The wetting winter is dominated by uniform SST warming mainly through its effect on the jet extension. As a fundamental response to the enhanced upper‐tropospheric warming in the tropics, the jet extension in coupled simulations is well reproduced under uniform SST warming and robust among models. An El Niño‐like SST warming pattern has a secondary contribution to the jet extension via atmospheric teleconnection, but with large inter‐model spread. Relative to the SST forcing, the direct CO2 radiative effect is negligible. |
领域 | 气候变化 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/315623 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Lu Dong,L. Ruby Leung. Winter precipitation changes in California under global warming: Contributions of CO2, uniform SST warming, and SST change patterns[J]. Geophysical Research Letters,2021. |
APA | Lu Dong,&L. Ruby Leung.(2021).Winter precipitation changes in California under global warming: Contributions of CO2, uniform SST warming, and SST change patterns.Geophysical Research Letters. |
MLA | Lu Dong,et al."Winter precipitation changes in California under global warming: Contributions of CO2, uniform SST warming, and SST change patterns".Geophysical Research Letters (2021). |
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